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10387530 = 2325211547
BaseRepresentation
bin100111101000…
…000001001010
3201112202000100
4213220001022
510124400110
61010350230
7154202226
oct47500112
921482010
1010387530
11595533a
12358b376
1321c908a
141545786
15da2bc0
hex9e804a

10387530 has 48 divisors (see below), whose sum is σ = 27185184. Its totient is φ = 2751840.

The previous prime is 10387529. The next prime is 10387537. The reversal of 10387530 is 3578301.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 10387494 and 10387503.

It is not an unprimeable number, because it can be changed into a prime (10387537) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 18717 + ... + 19263.

It is an arithmetic number, because the mean of its divisors is an integer number (566358).

Almost surely, 210387530 is an apocalyptic number.

10387530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10387530, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (13592592).

10387530 is an abundant number, since it is smaller than the sum of its proper divisors (16797654).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

10387530 is a wasteful number, since it uses less digits than its factorization.

10387530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 771 (or 768 counting only the distinct ones).

The product of its (nonzero) digits is 2520, while the sum is 27.

The square root of 10387530 is about 3222.9691279936. The cubic root of 10387530 is about 218.1913002508.

The spelling of 10387530 in words is "ten million, three hundred eighty-seven thousand, five hundred thirty".

Divisors: 1 2 3 5 6 9 10 15 18 30 45 90 211 422 547 633 1055 1094 1266 1641 1899 2110 2735 3165 3282 3798 4923 5470 6330 8205 9495 9846 16410 18990 24615 49230 115417 230834 346251 577085 692502 1038753 1154170 1731255 2077506 3462510 5193765 10387530